This series offers a first introduction to natural resources such as waterair or fossil fuels and why they are important. In simple language each bookexplains t... » 

This series offers a first introduction to natural resources such as waterair or fossil fuels and why they are important. In simple language each bookexplains the properties of the material where it comes from and how it isused. An activity is included at the end of each book to reinforce the readersunderstanding of the material. «